Core box



Jan. 16, 1923.

G. C. DEVED ET AL.

CORE BOX.

FILED SEPT-8.1921- 3 SHEETS-SHEET 1.

Jan. 16, 1923.

e. 0. DEVED ET AL.

CORE BOX.

FILED SEPT.8,192I- 3 SHEETS-SHEET 2.

Jan. 16,1928. I 1,442,329. I e. c. DEVED ET AL. 4

CORE BOX.

FILED SEPT- 8,192].

I Q @mfimmm Patented Jan. it), 1923.

aura STATfi GEORGE C. DEVED AND GARRETT F. DEVED, OF BALTIMORE, MARYLAND.

CORE BOX.

Application filed September 8,1921.

To all whom it may concern.

Be it known that we Gannon C. Dnvno and u 2 GARRETT .d. Dnvnn, cltlzens of the Unlted States of America, both residing in the city.

5 of Baltimore, State of lvlaryland, have invented certain new and useful Improvements in Core Boxes, oi which the following is a specification.

The present invention relates to an improved core box for making window weight cores, the broad :z'features of which are disclosed and claimed in patent of Smith B. and George C. Deved, No. 1,387,531. The patented core box embodies as one of its important features, a. removable number located between upright projections or legs near the bottom ofthe core chamber. These projections with the cross arm or rod which rests on the top ends'ofthe projections are reproduced in the casting as the upper end of the sash weight the cross arm and projections forming the eye in the sash weight and the removable number likewise repro duced appears in a prominent position on the casting, i. e., at the bottom of the eye indicating the weight-of the casting.

The removable number combined with the other features which give great speed of operation, makes it possible and feasible to produce the cores for all the sash weights or all. the different sizes made in the average foundry by means of a single core box. The removable number in the patented core box is carried ona. clip or plate which is placed or hooked between the projections or legs. While this is a perfectly practical operative device, the-ends of the plate'become worn and the plate is more or less apt to be dis-- placed-while the core box is in use.

The present invention includes as one of its features, a number plate which is mounted on a central pin or spindle which fits down in a corresponding socket in the box.

The projections between which the number plate tits and the pin and sockethold the number plate in position so that it cannot by any chance become displaced unless it is intentionally removed. which is of course necessary in changing from one size of weights to another.

in important feature of thepatented core box-resides in the structure which includes two swinging sides having registering concavitiesyforming the core pockets and a base on which the sides are pivoted to swing ng wise and a rod w iioh forms the tops of Serial No. 499,170.

the eyes in the weights'by first forming eyes in the cores, which rod extends through the box longitudinally and parallel to the axis of swing being seated in other registering concavities in the meeting surfaces of the sides. This arrangement has resulted in a core box which turns out cores at a greatly increased speed as compared to the previous practice in this line.

The present invention relates to this type of box and contributes to a further increase in the speed of operation. The previous core boxes which were made to open and shut in this manner have been tastened by means of a pivoted bolt having a wing nut. the bolt beingpivoted to one side of the core box and the swinging end of the bolt dropping into a notch on the other side so that the wing nut could be tightened against the notched member to. draw the tops of the box together. This is eitective as a. fastening but to open it requires several seconds at each end of the operation, i. e, when the box is closed and when it is opened. The present invention provides a fastening device which is thrown open by a single motion and in closing requires no attention at all, dropping into position as the box is closed and locking by gravity with sufficient security for ordinary purposes, though it may be further tightened.

In the accompanying drawing we have illustrated acore box provided with the teatures'of our invention.

In the drawing:

Figure l is a plan of the box closed and locked.

Figure-Qis a reduced end view showing the box closed but unlocked.

Figure 3 is a transverse section on the'line 3-3, Figure 1 showing the box closed and locked andcontaining a core print.

Figure at is an end view of the box closed.

l igure 5 is a side view of the box looking from the left in Figure 3, showing the box closed and locked and broken awayto show apocket.

Figure 6 is a perspective view ot a core print.

Figure 7 shows the upper end of a ii'eightwith the eye-and number. the sane being of the. type -'produced from the core inadefrom the applicants box.

Figure 8 is a side view ot the core box partlybroken awayto show the improved number 1' plate. l

Figure 9 is a transverse ection on the line 9-9 of Figure 8, showing our ii'nproved number plate.

l igure 10 is a plan of the box broken away.

Figure ll is an elevation of the improved number plate.

Figure 12 is a plan of the same.

Referring to the drawings by numerals, the core box consists of side members, 1 and 2, and a bottom member 3 theside members being pivctec at t and 5 to the bottom member to swing tongwise relatively thereto. The side members are provided with corresponding registering apertures or concavities t 7, which when the box is closed, form the pockets in which the cores or core prints are shaped. These holes are closed by the bottom member which preferably has upright protuberances 8, and in, the form of the invention shown the protuberances are provided with projections 9-9 spaced apart to form the eye 10, which is closed at the top by a longitudinal rod 11, parallel to the axes oi't' swing of the side members, i. e., pivots 4t, 5, passing througl'i the entire box which may have as many pockets or aoertures as desired. The meeting surfaces of the swinging members 1 and 2 are hollowed out in suitable registering concavities 1212 to receive the rod.

In accordance with our invention a re movable plate 15 is supported on the plug between the legs and removably secured thereto. In the present instance, the munber plate is concaved as to its sides 161"? to lit the projections 9-9, and is provided with a downwardly projecting pin 18 to lit in socket or hole 19 in the bottom oi the pocket. In this way the plate is held sccurely in position so long as desired and is conveniently removed at will. The security afforded being such however, as to eliminate any chance of the plates being accidentally removed or displaced. I

Figures 1 2 and 3 are particularly illustrative of the fastening. It consists of a transverse swinging locking arm 20, pivoted to one side ot the box at the top at 2i and having a rearwardly projecting stop 22, integral with the arm and projecting on the opposite side of the pivot therefrom. J-it the swinging end the arm is provided with a head 23, to'which is pivoted an eccentric 24. having an eccentric arm rigidly se cured thereto. the arm being as shown sub-- stantially at right angles to the greatest radius of the eccentric.

The box is shown fastened in Figure 3. To unfasten and open it the arm 25, is thrown up and the locking arm thrown back as seen in Figure 2, until the stop 22 rests against the side of the box. In this position the center of gravity of the arm has swung by the center of the pivot 22 so that it is in stable equilibrium. The box may now be opened and the core removed, after which the box is preferably swung sharply to closed position which causes the locking arm 20 with the eccentric arm carrying the eccentric Ql to swing forward and drop so that the arm 20 rests on the box, in the form shown, lying in the notch 26. As the arm 20 falls the eccentric arm 25 swings for ward and downward rotating the eccentric and with a cam action tightening the fastening until the resistance overcomes grav ty and the acceleration thus acquired. The veight ()iii arm locks the box by rotating the eccentric and tends to hold the eccentric in locked position.

it is obviou that the operation described, even though it should be necessary to apply slight pressure to the arm 25, to complete the fastening operation, is very much quicker than any of the known screw type of core box tastenings and that it lends itself to the most efficient operation of the box, and further that it corresponds to the rest of the apparatus in that it may be operated to great advantage by the most unskilled labor.

We have thus described specifically and in detail a single embodiment of our invention so that the nature and operation of same may be clearly understood, however, the specific terms herein are used descriptivel rather than in a limiting sense, the scope of the invention being defined in the claims.

What we claim and desire to secure by Letters Patent is:

1. A core box consisting of tongwise swinging members having registering concavities forming a core pocket, a base closing the bottom of the pocket. members projecting into the pocket at the sides and a removable number plate fitting between the projections and provided with a pin, the base having a socket to receive the pin.

2. A core box for window sash weights adapted to produce eye forming cores consisting of laterally swinging members having registering concavitie's to form the core pockets, a base closing the bottom of the pockets and having upwardly projecting legs and a bar resting on the legs, the eyes and a removable number plate for each pocket fitting the space between the legs, and having a downwardly projecting pin. the base having a socket to receive the pin.

3. A core box for producing eye forming cores for sash weights, the core box having tong'wise swinging side members with registering concavities forming the core pockets, fastening means for the swinging members consisting of an arm pivoted near the top of one side member to swing in a transverse plane and having a rearwardly projecting stop adapted to support the arm when it swings backward past the vertical and cam member pivoted on the swinging end of the arm so as to engage the other swinging memher on the side remote from the first men tioned pivot, the cam member having an arm projecting therefrom by which it may be rotated.

4. A core box for producing eye forming cores for sash weights. the core box having tongwise swinging side members mounted thereon with registering concavities forming the core pockets, fastening means for the swinging members consisting of an arm pivoted to one side member to swing in a transverse plane and having a stop adapted to support the arm when it swings backward past the vertical end, an eccentric member pivoted on the swinging end of the arm so as to engage the other swinging member on the side removed from the first mentioned pivot, the eccentric member having an arm projecting therefrom by which it may be rotated, the eccentric arm being substantially at right angles to the longest radius of the eccentric.

Signed at Baltimore, Maryland, this 1st day of September 1921.

GEORGE C. DEVED. GARRETT F. DEVED.

Witnesses:

PORTER H. FLAUTT, CARRIE M. REILY. 

